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    <title>大学生学习资源共享平台</title>
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        .main {
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            background-image: url('img/book.jpg');
            background-size: cover;
            background-position: center;
            height: 730px;
            width: 100%;
            display: flex;
            justify-content: center;
            align-items: center;
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        .main-content {
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        .main-content h1 {
            font-size: 60px;
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			font-family: "宋体";
			color:royalblue;
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        .main-content p {
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        .main-content button{
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            padding: 10px 20px;
            font-size: 18px;
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            cursor: pointer;
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		.q{
			 font-size: 18px;
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            <h1><b>大学生学习资源共享平台</b></h1>
            <p>&nbsp;<br><br><b>如果你有一个苹果，<br>我有一个苹果，<br>彼此交换，我们每个人仍然只有一个苹果；<br>如果你有一种思想，<br>我有一种思想，<br>彼此交换，我们每个人就有了两种思想。</b></p >
            <button onclick="window.location.href='demo1.html'"><h2>点击开始你的资源共享之旅……</h2></button>
			<div class="q">"知识不是力量，共享的知识<br>才是力量"<br>&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp————罗宾 夏玛<br><br>学生资源共享平台正是为此而生。<div>
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